How break cycle for with if else statement in django template - django

Question

I read if else statement in Django docs
but i don't understand my case.
I have photos list, i want render image if is COVER else i want render static image.
This my code
{% for x in listing.photos.all %}
{% if x.photo_tipo == 'COVER' %}
<img src="{{ x.get_thumb }}" alt="">
{% else %}
<img src="{% static 'images/about/1.jpg' %}" alt="">
{% endif %}
{% endfor %}
Result is: an image if x.photo == 'COVER' and a static image for every other photo in the list.
I would like to get only one result if the declaration is true or only one static image if it is false

Answer 1

Don't do this in the template. Add some logic somewhere that gives you the photo with that type directly if it exists. A good way would be with a method on the Listing model:
class Listing(models.Model):
...
def cover_photo(self):
return self.photos.filter(photo_tipo='COVER').first()
Now your template could be:
{% with photo as listing.cover_photo %}
{% if photo %}
<img src="{{ photo.get_thumb }}" alt="">
{% else %}
<img src="{% static 'images/about/1.jpg' %}" alt="">
{% endif %}
{% endwith %}